Product comparison · 2 network transceiver modules

StarTech.com Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX vs StarTech.com Cisco SFP-25G-LR-S Compatible SFP28 Module, 25Gbps Single Mode Fiber (SMF), 10km (6.2mi), LC Connector, 1310nm, MSA 25 Gigabit Optical Transceiver

20specifications compared
14differ
6identical
18known for one product only

Key differences

Maximum data transfer rate
- Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:100000 Mbit/s
- Cisco SFP-25G-LR-S Compatible SFP28 Module, 25Gbps Single Mode Fiber (SMF), 10km (6.2mi), LC Connector, 1310nm, MSA 25 Gigabit Optical Transceiver:25780 Mbit/s
Interface type
- Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:QSFP
- Cisco SFP-25G-LR-S Compatible SFP28 Module, 25Gbps Single Mode Fiber (SMF), 10km (6.2mi), LC Connector, 1310nm, MSA 25 Gigabit Optical Transceiver:SFP28
SFP transceiver standard
- Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:SRBD
- Cisco SFP-25G-LR-S Compatible SFP28 Module, 25Gbps Single Mode Fiber (SMF), 10km (6.2mi), LC Connector, 1310nm, MSA 25 Gigabit Optical Transceiver:LR
Maximum transfer distance
- Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:100 m
- Cisco SFP-25G-LR-S Compatible SFP28 Module, 25Gbps Single Mode Fiber (SMF), 10km (6.2mi), LC Connector, 1310nm, MSA 25 Gigabit Optical Transceiver:10000 m
Networking standards
- Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:IEEE 802.3ba
- Cisco SFP-25G-LR-S Compatible SFP28 Module, 25Gbps Single Mode Fiber (SMF), 10km (6.2mi), LC Connector, 1310nm, MSA 25 Gigabit Optical Transceiver:IEEE 802.3cc
Fiber ethernet cabling technology
- Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:100GBASE
- Cisco SFP-25G-LR-S Compatible SFP28 Module, 25Gbps Single Mode Fiber (SMF), 10km (6.2mi), LC Connector, 1310nm, MSA 25 Gigabit Optical Transceiver:25GBASE
Duplex system
- Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:Full, Half
- Cisco SFP-25G-LR-S Compatible SFP28 Module, 25Gbps Single Mode Fiber (SMF), 10km (6.2mi), LC Connector, 1310nm, MSA 25 Gigabit Optical Transceiver:Full
Mean time between failures (MTBF)
- Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:3543209 h
- Cisco SFP-25G-LR-S Compatible SFP28 Module, 25Gbps Single Mode Fiber (SMF), 10km (6.2mi), LC Connector, 1310nm, MSA 25 Gigabit Optical Transceiver:3292647 h

Side by side

Differences highlightedShow differences only

Comparison of QSFP-40-100-SRB-ST, SFP-25G-LR-S-C-ST
38 specifications	A StarTech.com Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX Model QSFP-40-100-SRB-ST View product	B StarTech.com Cisco SFP-25G-LR-S Compatible SFP28 Module, 25Gbps Single Mode Fiber (SMF), 10km (6.2mi), LC Connector, 1310nm, MSA 25 Gigabit Optical Transceiver Model SFP-25G-LR-S-C-ST View product
Performance7 differ
Maximum data transfer rateDiffers	100000 Mbit/s	25780 Mbit/s
Interface typeDiffers	QSFP	SFP28
Single-mode fiber (SMF) supportedKnown for one	Unknown — not stated by the source	Yes
SFP transceiver standardDiffers	SRBD	LR
Maximum transfer distanceDiffers	100 m	10000 m
WavelengthKnown for one	Unknown — not stated by the source	1310 nm
Networking standardsDiffers	IEEE 802.3ba	IEEE 802.3cc
Fiber ethernet cabling technologyDiffers	100GBASE	25GBASE
Duplex systemDiffers	Full, Half	Full
Multi-mode fiber (MMF) supportedKnown for one	Yes	Unknown — not stated by the source
Tx wavelength (max)Known for one	850 nm	Unknown — not stated by the source
Rx wavelength (max)Known for one	900 nm	Unknown — not stated by the source
Features2 differ
Mean time between failures (MTBF)Differs	3543209 h	3292647 h
Brand compatibilityDiffers	Cisco	MSA Compliant
Power1 differ
Power consumption (typical)Differs	4 W	1.2 W
Certificatesidentical
Compliance certificatesKnown for one	Unknown — not stated by the source	Federal Communications Commission (FCC), CE, RoHS
Sustainabilityidentical
Sustainability complianceKnown for one	Unknown — not stated by the source	Yes
Operational conditionsidentical
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 85 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	0 - 85%
Weight & dimensions3 differ
WidthDiffers	19 mm	14 mm
DepthDiffers	117.6 mm	56 mm
HeightDiffers	12.6 mm	8.5 mm
WeightKnown for one	Unknown — not stated by the source	200 g
Packaging dataidentical
Package widthKnown for one	Unknown — not stated by the source	90 mm
Package depthKnown for one	Unknown — not stated by the source	113 mm
Package heightKnown for one	Unknown — not stated by the source	34 mm
Package weightKnown for one	Unknown — not stated by the source	400 g
User guideKnown for one	Yes	Unknown — not stated by the source
Logistics data1 differ
Master (outer) case widthKnown for one	Unknown — not stated by the source	340 mm
Master (outer) case lengthKnown for one	Unknown — not stated by the source	420 mm
Master (outer) case heightKnown for one	Unknown — not stated by the source	350 mm
Products per master (outer) caseDiffers	36 pc(s)	100 pc(s)

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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